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authorDan Carpenter <dan.carpenter@oracle.com>2011-10-08 13:45:07 +0300
committerJames Bottomley <JBottomley@Parallels.com>2011-10-20 10:07:42 -0500
commitdc55b8274daddffefc34026ed7924138c8c5df17 (patch)
tree9f87676a30da007e0546f7f689d0dcd047eb1715 /drivers/scsi
parentd15fdd348313c64438a99d1324ba2eccdcf1e7e6 (diff)
downloadlinux-dc55b8274daddffefc34026ed7924138c8c5df17.tar.gz
[SCSI] aacraid: use lower snprintf() limit
This is just a cleanup, to silence static checker warnings.  It
doesn't change how the code works.

buf[] can either be BUF_SIZE if this is called from sysfs, or it can
be 16 if it's called from aac_get_adapter_info() via
aac_get_serial_number().  We use the smaller limit here.

sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo) is 12 so there
is actually no chance of hitting either limit.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com> 
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/aacraid/linit.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 3382475dc22d..4aa76d6f11df 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -894,16 +894,17 @@ static ssize_t aac_show_serial_number(struct device *device,
 	int len = 0;
 
 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
-		len = snprintf(buf, PAGE_SIZE, "%06X\n",
+		len = snprintf(buf, 16, "%06X\n",
 		  le32_to_cpu(dev->adapter_info.serial[0]));
 	if (len &&
 	  !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
 	    sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
 	  buf, len-1))
-		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
+		len = snprintf(buf, 16, "%.*s\n",
 		  (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
 		  dev->supplement_adapter_info.MfgPcbaSerialNo);
-	return len;
+
+	return min(len, 16);
 }
 
 static ssize_t aac_show_max_channel(struct device *device,