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| author | Lee Jones <lee.jones@linaro.org> | 2013-05-03 15:31:55 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-05-23 21:10:56 +0200 |
| commit | 4f8fc46c797015dddc1d4c76e1b485b57373683b (patch) | |
| tree | 2671a167f38e94918f0e0dbac5c8b0bd7296bb39 /drivers/dma | |
| parent | 29027a1e1121a1c9c5e726cf09dc2e9789a282f3 (diff) | |
| download | linux-4f8fc46c797015dddc1d4c76e1b485b57373683b.tar.gz linux-4f8fc46c797015dddc1d4c76e1b485b57373683b.tar.bz2 linux-4f8fc46c797015dddc1d4c76e1b485b57373683b.zip | |
dmaengine: ste_dma40: Rectify incorrect configuration validation checking
If we compare an event's group (dev_type / 16) with STEDMA40_DEV_DST_MEMORY
(-1), the only way we'd obtain a positive result is if we passed -16 as a
device type, which is unfeasible. Instead, it would be much more sane to
compare STEDMA40_DEV_DST_MEMORY against the raw dev_type in order to expect
the expected result.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index c47139ae8fa8..d481cb8521d9 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -1785,19 +1785,19 @@ static int d40_validate_conf(struct d40_chan *d40c, } if (conf->dir == STEDMA40_MEM_TO_PERIPH && - dst_event_group == STEDMA40_DEV_DST_MEMORY) { + conf->dst_dev_type == STEDMA40_DEV_DST_MEMORY) { chan_err(d40c, "Invalid dst\n"); res = -EINVAL; } if (conf->dir == STEDMA40_PERIPH_TO_MEM && - src_event_group == STEDMA40_DEV_SRC_MEMORY) { + conf->src_dev_type == STEDMA40_DEV_SRC_MEMORY) { chan_err(d40c, "Invalid src\n"); res = -EINVAL; } - if (src_event_group == STEDMA40_DEV_SRC_MEMORY && - dst_event_group == STEDMA40_DEV_DST_MEMORY && is_log) { + if (conf->src_dev_type == STEDMA40_DEV_SRC_MEMORY && + conf->dst_dev_type == STEDMA40_DEV_DST_MEMORY && is_log) { chan_err(d40c, "No event line\n"); res = -EINVAL; } |