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| author | Varun Prakash <varun@chelsio.com> | 2018-08-11 21:03:58 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-08-27 12:26:10 -0400 |
| commit | 89809b028b6f54187b7d81a0c69b35d394c52e62 (patch) | |
| tree | 4c089427aab1741ca7c2299def4c9834b014a138 /drivers/scsi/csiostor/csio_hw.c | |
| parent | a7ccd92c8d2ac4eb168b621e086be2dc9b8344f6 (diff) | |
| download | linux-89809b028b6f54187b7d81a0c69b35d394c52e62.tar.gz linux-89809b028b6f54187b7d81a0c69b35d394c52e62.tar.bz2 linux-89809b028b6f54187b7d81a0c69b35d394c52e62.zip | |
scsi: csiostor: add a check for NULL pointer after kmalloc()
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/csiostor/csio_hw.c')
| -rw-r--r-- | drivers/scsi/csiostor/csio_hw.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 23d07e9f87d0..6ff7c5580fcb 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -2364,8 +2364,8 @@ bye: } /* - * Returns -EINVAL if attempts to flash the firmware failed - * else returns 0, + * Returns -EINVAL if attempts to flash the firmware failed, + * -ENOMEM if memory allocation failed else returns 0, * if flashing was not attempted because the card had the * latest firmware ECANCELED is returned */ @@ -2393,6 +2393,13 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset) return -EINVAL; } + /* allocate memory to read the header of the firmware on the + * card + */ + card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL); + if (!card_fw) + return -ENOMEM; + if (csio_is_t5(pci_dev->device & CSIO_HW_CHIP_MASK)) fw_bin_file = FW_FNAME_T5; else @@ -2406,11 +2413,6 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset) fw_size = fw->size; } - /* allocate memory to read the header of the firmware on the - * card - */ - card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL); - /* upgrade FW logic */ ret = csio_hw_prep_fw(hw, fw_info, fw_data, fw_size, card_fw, hw->fw_state, reset); |