diff options
| author | Max Reitz <mreitz@redhat.com> | 2014-12-02 18:32:43 +0100 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2015-01-07 15:07:33 -0600 |
| commit | b3729b2ec2c205b7a09a741c2484403b59e04b80 (patch) | |
| tree | a5cc22bf1d06a5b8af9ef5054334f09a1331f553 | |
| parent | 1b9ea8961a8787672e7c146c91ee33aa815eb0da (diff) | |
| download | qemu-b3729b2ec2c205b7a09a741c2484403b59e04b80.tar.gz | |
block/vvfat: qcow driver may not be found
Although virtually impossible right now, bdrv_find_format("qcow") may
fail. The vvfat block driver should heed that case.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 1bcb15cf776a57e8963072c1919a59a90aea8e94)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
| -rw-r--r-- | block/vvfat.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/vvfat.c b/block/vvfat.c index 70176b1619..1de8808a4e 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -2926,6 +2926,12 @@ static int enable_write_target(BDRVVVFATState *s, Error **errp) } bdrv_qcow = bdrv_find_format("qcow"); + if (!bdrv_qcow) { + error_setg(errp, "Failed to locate qcow driver"); + ret = -ENOENT; + goto err; + } + opts = qemu_opts_create(bdrv_qcow->create_opts, NULL, 0, &error_abort); qemu_opt_set_number(opts, BLOCK_OPT_SIZE, s->sector_count * 512); qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, "fat:"); |