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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-19 03:01:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-19 03:01:19 +0300
commit9d20593a722c2dab7a5ab74f5d8c9b604aca52f9 (patch)
treeb5492b3191f29f68018c4d76f41f8bab379db0c5 /drivers/spi
parent9b59a0a4eefa132a3899b6e8d362f92559c67844 (diff)
parent9205124c66a69664c6825501cb062ebd2acd3b3a (diff)
downloadlinux-9d20593a722c2dab7a5ab74f5d8c9b604aca52f9.tar.xz
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6
* 'merge' of git://git.secretlab.ca/git/linux-2.6: powerpc/5200: Build fix for mpc52xx watchdog timer code of: Fix comparison of "compatible" properties powerpc/52xx: update defconfigs spi/omap2_mcspi: Use transaction speed if provided spi/omap2_mcspi: fix NULL pointer dereference uartlite: Fix build on sparc.
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/omap2_mcspi.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index 715c518b1b68..4dd786b99b8b 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -578,6 +578,7 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi,
struct spi_master *spi_cntrl;
u32 l = 0, div = 0;
u8 word_len = spi->bits_per_word;
+ u32 speed_hz = spi->max_speed_hz;
mcspi = spi_master_get_devdata(spi->master);
spi_cntrl = mcspi->master;
@@ -587,9 +588,12 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi,
cs->word_len = word_len;
- if (spi->max_speed_hz) {
+ if (t && t->speed_hz)
+ speed_hz = t->speed_hz;
+
+ if (speed_hz) {
while (div <= 15 && (OMAP2_MCSPI_MAX_FREQ / (1 << div))
- > spi->max_speed_hz)
+ > speed_hz)
div++;
} else
div = 15;
@@ -751,11 +755,13 @@ static void omap2_mcspi_cleanup(struct spi_device *spi)
mcspi = spi_master_get_devdata(spi->master);
mcspi_dma = &mcspi->dma_channels[spi->chip_select];
- /* Unlink controller state from context save list */
- cs = spi->controller_state;
- list_del(&cs->node);
+ if (spi->controller_state) {
+ /* Unlink controller state from context save list */
+ cs = spi->controller_state;
+ list_del(&cs->node);
- kfree(spi->controller_state);
+ kfree(spi->controller_state);
+ }
if (mcspi_dma->dma_rx_channel != -1) {
omap_free_dma(mcspi_dma->dma_rx_channel);