diff options
| author | Pawel Osciak <posciak@chromium.org> | 2014-10-21 08:07:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-10-28 15:54:11 -0200 |
| commit | f2035364ccbf357ae23bddd6ebf67b35ecdc6a67 (patch) | |
| tree | e925b74b860b2dd0ff8cb81061ba4c0c7383213f /drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | |
| parent | 9841dde5d965963cb9d0548054bc2f408cf7d8d5 (diff) | |
[media] s5p-mfc: fix a race in interrupt flags handling
Interrupt result flags have to be cleared before a hardware job is run.
Otherwise, if they are cleared asynchronously, we may end up clearing them
after the interrupt for which we wanted to wait has already arrived, thus
overwriting the job results that we intended to wait for.
To prevent this, clear the flags only under hw_lock and before running
a hardware job.
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Kiran AVND <avnd.kiran@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/s5p-mfc/s5p_mfc_enc.c')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c index 6a1c890a390d..7f919e42b279 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c @@ -1663,7 +1663,6 @@ static int s5p_mfc_enc_g_v_ctrl(struct v4l2_ctrl *ctrl) return -EINVAL; } /* Should wait for the header to be produced */ - s5p_mfc_clean_ctx_int_flags(ctx); s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0); if (ctx->state >= MFCINST_HEAD_PARSED && |