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authorColin Ian King <colin.king@canonical.com>2019-05-04 17:48:29 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2019-05-20 10:56:43 -0400
commitd0c0d902339249c75da85fd9257a86cbb98dfaa5 (patch)
treefc62dedcbe323f281dfb1ba5c0ef27552fa97e53 /drivers/scsi
parent8ef860ae55e96c9e8999a12c800d9fd1a91f66d7 (diff)
downloadlinux-d0c0d902339249c75da85fd9257a86cbb98dfaa5.tar.gz
scsi: bnx2fc: fix incorrect cast to u64 on shift operation
Currently an int is being shifted and the result is being cast to a u64 which leads to undefined behaviour if the shift is more than 31 bits. Fix this by casting the integer value 1 to u64 before the shift operation. Addresses-Coverity: ("Bad shift operation") Fixes: 7b594769120b ("[SCSI] bnx2fc: Handle REC_TOV error code from firmware") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_hwi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
index 039328d9ef13..30e6d78e82f0 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -830,7 +830,7 @@ ret_err_rqe:
((u64)err_entry->data.err_warn_bitmap_hi << 32) |
(u64)err_entry->data.err_warn_bitmap_lo;
for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
- if (err_warn_bit_map & (u64) (1 << i)) {
+ if (err_warn_bit_map & ((u64)1 << i)) {
err_warn = i;
break;
}