lkml.org 
[lkml]   [2012]   [Aug]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch] [SCSI] mvsas: fix a && vs & bug
The "1 << (slot_idx % 32)" condition is always true.  The intent was to
test a bit field here using bitwise AND. We do the test correctly a few
lines later in the do while loop.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Static checker fix. Untested. Would apply to the -stable kernel.
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index 7e423e5..16349aa 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -622,7 +622,7 @@ static void mvs_94xx_command_active(struct mvs_info *mvi, u32 slot_idx)
{
u32 tmp;
tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
- if (tmp && 1 << (slot_idx % 32)) {
+ if (tmp & 1 << (slot_idx % 32)) {
mv_printk("command active %08X, slot [%x].\n", tmp, slot_idx);
mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
1 << (slot_idx % 32));

\
 
 \ /
  Last update: 2012-08-16 13:42    [from the cache]
©2003-2011 Jasper Spaans