mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-03 07:38:10 +00:00
mmc: bcm2835: Fix possible NULL ptr dereference in bcm2835_request
This fixes a NULL pointer dereference in case of a MMC request with a set block count command and no data. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Tested-by: Peter Robinson <pbrobinson@gmail.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
parent
feeef096a7
commit
bf3240bada
1 changed files with 2 additions and 1 deletions
|
@ -1200,7 +1200,8 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq)
|
|||
return;
|
||||
}
|
||||
|
||||
host->use_sbc = !!mrq->sbc && (host->mrq->data->flags & MMC_DATA_READ);
|
||||
host->use_sbc = !!mrq->sbc && host->mrq->data &&
|
||||
(host->mrq->data->flags & MMC_DATA_READ);
|
||||
if (host->use_sbc) {
|
||||
if (bcm2835_send_command(host, mrq->sbc)) {
|
||||
if (!host->use_busy)
|
||||
|
|
Loading…
Reference in a new issue