4.4-stable review patch. If anyone has any objections, please let me know.
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From: Julia Lawall Julia.Lawall@lip6.fr
commit 46c236dc7d1212d7417e6fb0317f91c44c719322 upstream.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ expression e1,e2; statement S1,S2; @@
+e1 = e2; if (IS_ERR( e1 - = e2 )) S1 else S2 // </smpl>
Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/mon/mon_text.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -386,7 +386,8 @@ static ssize_t mon_text_read_t(struct fi struct mon_event_text *ep; struct mon_text_ptr ptr;
- if (IS_ERR(ep = mon_text_read_wait(rp, file))) + ep = mon_text_read_wait(rp, file); + if (IS_ERR(ep)) return PTR_ERR(ep); mutex_lock(&rp->printf_lock); ptr.cnt = 0; @@ -413,7 +414,8 @@ static ssize_t mon_text_read_u(struct fi struct mon_event_text *ep; struct mon_text_ptr ptr;
- if (IS_ERR(ep = mon_text_read_wait(rp, file))) + ep = mon_text_read_wait(rp, file); + if (IS_ERR(ep)) return PTR_ERR(ep); mutex_lock(&rp->printf_lock); ptr.cnt = 0;