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authorMarkus Armbruster <armbru@redhat.com>2014-01-30 15:07:28 +0100
committerLuiz Capitulino <lcapitulino@redhat.com>2014-02-17 11:57:23 -0500
commit84d18f065fb041a1c0d78d20320d740ae0673c8a (patch)
treec43dbfdadc21d4fff0f173f9413396cd314927f9 /block
parentff9ec34de8f6a37bd29ac72c0c4c94bd5d43d7b0 (diff)
downloadqemu-84d18f065fb041a1c0d78d20320d740ae0673c8a.tar.gz
Use error_is_set() only when necessary
error_is_set(&var) is the same as var != NULL, but it takes whole-program analysis to figure that out. Unnecessarily hard for optimizers, static checkers, and human readers. Dumb it down to obvious. Gets rid of several dozen Coverity false positives. Note that the obvious form is already used in many places. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/blkdebug.c4
-rw-r--r--block/blkverify.c2
-rw-r--r--block/curl.c2
-rw-r--r--block/gluster.c2
-rw-r--r--block/iscsi.c2
-rw-r--r--block/nbd.c2
-rw-r--r--block/qapi.c4
-rw-r--r--block/qcow2.c6
-rw-r--r--block/raw-posix.c12
-rw-r--r--block/raw-win32.c4
-rw-r--r--block/raw_bsd.c2
-rw-r--r--block/rbd.c2
-rw-r--r--block/sheepdog.c2
-rw-r--r--block/snapshot.c2
-rw-r--r--block/vvfat.c2
15 files changed, 25 insertions, 25 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 8eb0db0723..ee10013362 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -303,7 +303,7 @@ static int read_config(BDRVBlkdebugState *s, const char *filename,
}
qemu_config_parse_qdict(options, config_groups, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto fail;
@@ -393,7 +393,7 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto out;
diff --git a/block/blkverify.c b/block/blkverify.c
index cfcbcf41c3..1563c88324 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -128,7 +128,7 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto fail;
diff --git a/block/curl.c b/block/curl.c
index a8075847b8..bb1fc4ae28 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -463,7 +463,7 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
goto out_noclean;
diff --git a/block/gluster.c b/block/gluster.c
index a009b15ded..58eab07829 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -282,7 +282,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
ret = -EINVAL;
diff --git a/block/iscsi.c b/block/iscsi.c
index 8d0f9667c5..0a4ec3a63f 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1123,7 +1123,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
ret = -EINVAL;
diff --git a/block/nbd.c b/block/nbd.c
index 327e913002..abae506f04 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -209,7 +209,7 @@ static int nbd_config(BDRVNBDState *s, QDict *options, char **export)
&error_abort);
qemu_opts_absorb_qdict(s->socket_opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
return -EINVAL;
diff --git a/block/qapi.c b/block/qapi.c
index 8f4134b40a..8f2b4dbe7d 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -271,7 +271,7 @@ void bdrv_query_info(BlockDriverState *bs,
p_image_info = &info->inserted->image;
while (1) {
bdrv_query_image_info(bs0, p_image_info, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
goto err;
}
@@ -336,7 +336,7 @@ BlockInfoList *qmp_query_block(Error **errp)
while ((bs = bdrv_next(bs))) {
BlockInfoList *info = g_malloc0(sizeof(*info));
bdrv_query_info(bs, &info->value, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
goto err;
}
diff --git a/block/qcow2.c b/block/qcow2.c
index 0b4335ca5b..b1dbdb120e 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -671,7 +671,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
/* Enable lazy_refcounts according to image and command line options */
opts = qemu_opts_create(&qcow2_runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto fail;
@@ -1605,7 +1605,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
ret = bdrv_open(bs, filename, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_BACKING,
drv, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
goto out;
}
@@ -1685,7 +1685,7 @@ static int qcow2_create(const char *filename, QEMUOptionParameter *options,
ret = qcow2_create2(filename, sectors, backing_file, backing_fmt, flags,
cluster_size, prealloc, options, version, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 126a634e45..161ea14812 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -361,7 +361,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
opts = qemu_opts_create(&raw_runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto fail;
@@ -448,7 +448,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags,
s->type = FTYPE_FILE;
ret = raw_open_common(bs, options, flags, 0, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
@@ -1597,7 +1597,7 @@ static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
ret = raw_open_common(bs, options, flags, 0, &local_err);
if (ret < 0) {
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
@@ -1832,7 +1832,7 @@ static int floppy_open(BlockDriverState *bs, QDict *options, int flags,
/* open will not fail even if no floppy is inserted, so add O_NONBLOCK */
ret = raw_open_common(bs, options, flags, O_NONBLOCK, &local_err);
if (ret) {
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
@@ -1961,7 +1961,7 @@ static int cdrom_open(BlockDriverState *bs, QDict *options, int flags,
/* open will not fail even if no CD is inserted, so add O_NONBLOCK */
ret = raw_open_common(bs, options, flags, O_NONBLOCK, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
@@ -2078,7 +2078,7 @@ static int cdrom_open(BlockDriverState *bs, QDict *options, int flags,
ret = raw_open_common(bs, options, flags, 0, &local_err);
if (ret) {
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
diff --git a/block/raw-win32.c b/block/raw-win32.c
index beb7f2395e..ae1c8e6cca 100644
--- a/block/raw-win32.c
+++ b/block/raw-win32.c
@@ -279,7 +279,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&raw_runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto fail;
@@ -594,7 +594,7 @@ static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
QemuOpts *opts = qemu_opts_create(&raw_runtime_opts, NULL, 0,
&error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto done;
diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index af8706dc97..01ea692a46 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -146,7 +146,7 @@ static int raw_create(const char *filename, QEMUOptionParameter *options,
int ret;
ret = bdrv_create_file(filename, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
return ret;
diff --git a/block/rbd.c b/block/rbd.c
index 121fae221e..dbc79f4525 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -440,7 +440,7 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
qemu_opts_del(opts);
diff --git a/block/sheepdog.c b/block/sheepdog.c
index 672b9c97a2..e6c0376566 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -1385,7 +1385,7 @@ static int sd_open(BlockDriverState *bs, QDict *options, int flags,
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
ret = -EINVAL;
diff --git a/block/snapshot.c b/block/snapshot.c
index 9047f8ddc9..85c52ff455 100644
--- a/block/snapshot.c
+++ b/block/snapshot.c
@@ -345,7 +345,7 @@ int bdrv_snapshot_load_tmp_by_id_or_name(BlockDriverState *bs,
ret = bdrv_snapshot_load_tmp(bs, NULL, id_or_name, &local_err);
}
- if (error_is_set(&local_err)) {
+ if (local_err) {
error_propagate(errp, local_err);
}
diff --git a/block/vvfat.c b/block/vvfat.c
index 664941c560..a19e4ca227 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1085,7 +1085,7 @@ DLOG(if (stderr == NULL) {
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
- if (error_is_set(&local_err)) {
+ if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
ret = -EINVAL;
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-13 07:48:13 +0000