diff mbox

[3.13.y-ckt,110/143] sg: fix read() error reporting

Message ID 1427831308-1854-111-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa March 31, 2015, 7:47 p.m. UTC 
3.13.11-ckt18 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tony Battersby <tonyb@cybernetics.com>

commit 3b524a683af8991b4eab4182b947c65f0ce1421b upstream.

Fix SCSI generic read() incorrectly returning success after detecting an
error.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/scsi/sg.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index df5e961..eb81c98 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -522,7 +522,7 @@  static ssize_t
 sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
 {
 	sg_io_hdr_t *hp = &srp->header;
-	int err = 0;
+	int err = 0, err2;
 	int len;
 
 	if (count < SZ_SG_IO_HDR) {
@@ -551,8 +551,8 @@  sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
 		goto err_out;
 	}
 err_out:
-	err = sg_finish_rem_req(srp);
-	return (0 == err) ? count : err;
+	err2 = sg_finish_rem_req(srp);
+	return err ? : err2 ? : count;
 }
 
 static ssize_t