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authorTony Battersby <tonyb@cybernetics.com>2015-02-11 19:32:06 +0300
committerJames Bottomley <JBottomley@Parallels.com>2015-02-15 21:36:55 +0300
commit3b524a683af8991b4eab4182b947c65f0ce1421b (patch)
tree3a91b1a2f2c3b192a8f4b1c806a896c33404d810 /drivers/scsi
parent2ecf8e0ae28cb22d434e628c351c6193fd75fafa (diff)
downloadlinux-3b524a683af8991b4eab4182b947c65f0ce1421b.tar.xz
sg: fix read() error reporting
Fix SCSI generic read() incorrectly returning success after detecting an error. Cc: <stable@vger.kernel.org> Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/sg.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index a668c88ea150..6ad1480e87b7 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -546,7 +546,7 @@ 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) {
@@ -575,8 +575,8 @@ 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