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[libata] sata_sil: fix used-uninit warning 

Init 'serror' to silence the following warning:

drivers/ata/sata_sil.c: In function ‘sil_interrupt’:
drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in
this function [-Wuninitialized]

This is not a 'can never happen' but is nonetheless extremely unlikely.
The easiest and cleanest warning fix is simply to init the var,
rather than worry about marking the var uninit-ok.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Jeff Garzik 2011-08-18 23:52:36 -04:00 committed by Jeff Garzik
parent 2f84dd7091
commit ebd1699ec5
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/sata_sil.c
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@ -438,7 +438,7 @@ static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
u8 status;
if (unlikely(bmdma2 & SIL_DMA_SATA_IRQ)) {
u32 serror;
u32 serror = 0xffffffff;
/* SIEN doesn't mask SATA IRQs on some 3112s. Those
* controllers continue to assert IRQ as long as