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| author | Colin Ian King <colin.king@canonical.com> | 2019-05-04 17:48:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-22 08:18:23 +0200 |
| commit | f80a35fcb9e922d8731125ed09714019e07b24f5 (patch) | |
| tree | df64234632d7e4a604e4ac13078fef9b97029809 /drivers | |
| parent | da51a322f197bf62736eba3f8c8151b5d2743903 (diff) | |
| download | linux-stable-f80a35fcb9e922d8731125ed09714019e07b24f5.tar.gz linux-stable-f80a35fcb9e922d8731125ed09714019e07b24f5.tar.bz2 linux-stable-f80a35fcb9e922d8731125ed09714019e07b24f5.zip | |
scsi: bnx2fc: fix incorrect cast to u64 on shift operation
[ Upstream commit d0c0d902339249c75da85fd9257a86cbb98dfaa5 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/bnx2fc/bnx2fc_hwi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 28c671b609b2..0c71b69b9f88 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -829,7 +829,7 @@ 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; } |