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firmware: qemu_fw_cfg.c: potential unintialized variable

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It acpi_acquire_global_lock() return AE_NOT_CONFIGURED then "glk" isn't
initialized, which, if you got very unlucky, could cause a bug.

Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
This commit is contained in:
Dan Carpenter 2016-04-14 12:33:37 +03:00 • committed by Michael S. Tsirkin
commit d4f6e272f2
1 changed files with 1 additions and 1 deletions
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drivers/firmware/qemu_fw_cfg.c
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@ -77,7 +77,7 @@ static inline u16 fw_cfg_sel_endianness(u16 key)
static inline void fw_cfg_read_blob(u16 key,
void *buf, loff_t pos, size_t count)
{
u32 glk;
u32 glk = -1U;
acpi_status status;
/* If we have ACPI, ensure mutual exclusion against any potential