Check whether memory allocation succeeded before dereferencing the pointer to the allocated memory. Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cc: Johannes Thumshirn <jthumshirn@xxxxxxx> --- drivers/scsi/scsi_transport_sas.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index c5cde4ecef8e..6c05fd9a0be5 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -423,6 +423,9 @@ sas_tlr_supported(struct scsi_device *sdev) char *buffer = kzalloc(vpd_len, GFP_KERNEL); int ret = 0; + if (!buffer) + goto out; + if (scsi_get_vpd_page(sdev, 0x90, buffer, vpd_len)) goto out; -- 2.14.1
