[PATCH 3/3] scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2()

From: Nikola Pajkovsky
Date: Tue Aug 29 2017 - 07:59:29 EST


aac_convert_sgraw2() kmalloc memory and return -1 on error, which
should be -ENOMEM. However, nobody is checking return value, so with
this change, -ENOMEM is propagated to upper layer.

Signed-off-by: Nikola Pajkovsky <npajkovsky@xxxxxxx>
---
drivers/scsi/aacraid/aachba.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 3c354766791e..ca38c2b52b47 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -3956,8 +3956,12 @@ static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
if (!err_found)
break;
}
- if (i > 0 && nseg_new <= sg_max)
- aac_convert_sgraw2(rio2, i, nseg, nseg_new);
+ if (i > 0 && nseg_new <= sg_max) {
+ int ret = aac_convert_sgraw2(rio2, i, nseg, nseg_new);
+
+ if (ret < 0)
+ return ret;
+ }
} else
rio2->flags |= cpu_to_le16(RIO2_SGL_CONFORMANT);

@@ -3981,7 +3985,7 @@ static int aac_convert_sgraw2(struct aac_raw_io2 *rio2, int pages, int nseg, int

sge = kmalloc(nseg_new * sizeof(struct sge_ieee1212), GFP_ATOMIC);
if (sge == NULL)
- return -1;
+ return -ENOMEM;

for (i = 1, pos = 1; i < nseg-1; ++i) {
for (j = 0; j < rio2->sge[i].length / (pages * PAGE_SIZE); ++j) {
--
2.13.5