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authorMarkus Armbruster <armbru@redhat.com>2015-08-26 14:02:53 +0200
committerMichael Tokarev <mjt@tls.msk.ru>2015-09-11 10:21:38 +0300
commit012aef073461fd24a901d7a8742532093b7f6ae5 (patch)
tree4ee28d5cedea44f2af2b5b3a7fe482d9e80a3fad /hw
parentef1e1e0782e99c9dcf2b35e5310cdd8ca9211374 (diff)
downloadqemu-012aef073461fd24a901d7a8742532093b7f6ae5.tar.gz
maint: avoid useless "if (foo) free(foo)" pattern
My Coccinelle semantic patch finds a few more, because it also fixes up the equally pointless conditional if (foo) { free(foo); foo = NULL; } Result (feel free to squash it into your patch): Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'hw')
-rw-r--r--hw/char/exynos4210_uart.c6
-rw-r--r--hw/net/rtl8139.c6
-rw-r--r--hw/ppc/spapr_pci.c12
-rw-r--r--hw/sd/sdhci.c6
-rw-r--r--hw/usb/hcd-ehci-pci.c6
5 files changed, 12 insertions, 24 deletions
diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c
index 7614e5860f..215f9622c9 100644
--- a/hw/char/exynos4210_uart.c
+++ b/hw/char/exynos4210_uart.c
@@ -234,10 +234,8 @@ static int fifo_empty_elements_number(Exynos4210UartFIFO *q)
static void fifo_reset(Exynos4210UartFIFO *q)
{
- if (q->data != NULL) {
- g_free(q->data);
- q->data = NULL;
- }
+ g_free(q->data);
+ q->data = NULL;
q->data = (uint8_t *)g_malloc0(q->size);
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 2040618afa..b0d6c40f58 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -3391,10 +3391,8 @@ static void pci_rtl8139_uninit(PCIDevice *dev)
{
RTL8139State *s = RTL8139(dev);
- if (s->cplus_txbuffer) {
- g_free(s->cplus_txbuffer);
- s->cplus_txbuffer = NULL;
- }
+ g_free(s->cplus_txbuffer);
+ s->cplus_txbuffer = NULL;
timer_del(s->timer);
timer_free(s->timer);
qemu_del_nic(s->nic);
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index a8f79d8003..a2feb4c985 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1460,10 +1460,8 @@ static void spapr_pci_pre_save(void *opaque)
gpointer key, value;
int i;
- if (sphb->msi_devs) {
- g_free(sphb->msi_devs);
- sphb->msi_devs = NULL;
- }
+ g_free(sphb->msi_devs);
+ sphb->msi_devs = NULL;
sphb->msi_devs_num = g_hash_table_size(sphb->msi);
if (!sphb->msi_devs_num) {
return;
@@ -1490,10 +1488,8 @@ static int spapr_pci_post_load(void *opaque, int version_id)
sizeof(sphb->msi_devs[i].value));
g_hash_table_insert(sphb->msi, key, value);
}
- if (sphb->msi_devs) {
- g_free(sphb->msi_devs);
- sphb->msi_devs = NULL;
- }
+ g_free(sphb->msi_devs);
+ sphb->msi_devs = NULL;
sphb->msi_devs_num = 0;
return 0;
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index e63367ba56..65304cff5e 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -1169,10 +1169,8 @@ static void sdhci_uninitfn(SDHCIState *s)
qemu_free_irq(s->eject_cb);
qemu_free_irq(s->ro_cb);
- if (s->fifo_buffer) {
- g_free(s->fifo_buffer);
- s->fifo_buffer = NULL;
- }
+ g_free(s->fifo_buffer);
+ s->fifo_buffer = NULL;
}
const VMStateDescription sdhci_vmstate = {
diff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-ehci-pci.c
index 7afa5f9d67..16fb845d07 100644
--- a/hw/usb/hcd-ehci-pci.c
+++ b/hw/usb/hcd-ehci-pci.c
@@ -95,10 +95,8 @@ static void usb_ehci_pci_exit(PCIDevice *dev)
usb_ehci_unrealize(s, DEVICE(dev), NULL);
- if (s->irq) {
- g_free(s->irq);
- s->irq = NULL;
- }
+ g_free(s->irq);
+ s->irq = NULL;
}
static void usb_ehci_pci_reset(DeviceState *dev)