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authorTony Battersby <tonyb@cybernetics.com>2015-02-11 11:32:06 -0500
committerSasha Levin <sasha.levin@oracle.com>2015-03-23 21:02:44 -0400
commit26a344876afaace358669f0f06894b9bce24ec09 (patch)
treed7ad60361ca5acd327ac2268d2876d4d7a63793f /drivers/scsi/sg.c
parent636697380e1189b5385aeef9b022a3a65024fba9 (diff)
sg: fix read() error reporting
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: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/scsi/sg.c')
-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 843594c2583d..07b2ea1fbf0d 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