From 1ad371deb9b0be142dca205611a56854a37fc48d Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 26 Jun 2017 08:33:56 -0400 Subject: [PATCH] media: pvrusb2: fix the retry logic As reported by this warning: drivers/media/usb/pvrusb2/pvrusb2-encoder.c:263 pvr2_encoder_cmd() warn: continue to end of do { ... } while(0); loop There's an issue at the retry logic there: the current logic is: do { if (need_to_retry) continue; some_code(); } while (0); Well, that won't work, as continue will make it test for zero, and abort the loop. So, change the loop to: while (1) { if (need_to_retry) continue; some_code(); break; }; With seems to be what's actually expected there. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/pvrusb2/pvrusb2-encoder.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/usb/pvrusb2/pvrusb2-encoder.c b/drivers/media/usb/pvrusb2/pvrusb2-encoder.c index ca637074fa1f..43e43404095f 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-encoder.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-encoder.c @@ -198,7 +198,7 @@ static int pvr2_encoder_cmd(void *ctxt, } - LOCK_TAKE(hdw->ctl_lock); do { + LOCK_TAKE(hdw->ctl_lock); while (1) { if (!hdw->state_encoder_ok) { ret = -EIO; @@ -293,9 +293,9 @@ rdData[0]); wrData[0] = 0x0; ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,1); - if (ret) break; + break; - } while(0); LOCK_GIVE(hdw->ctl_lock); + }; LOCK_GIVE(hdw->ctl_lock); return ret; } -- 2.20.1