diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-03-11 10:30:14 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-03-17 22:35:15 +0300 |
| commit | 860cfe796c793bfad1e666de9600852f2d653c57 (patch) | |
| tree | 62d9da3c369195a586043ab43d1656752fb9cc6e | |
| parent | b33d46c398fd071dccd0815f33620924684860cd (diff) | |
| download | linux-860cfe796c793bfad1e666de9600852f2d653c57.tar.xz | |
mmc: tmio: fix address in kunmap_atomic() calls
Currently kunmap_atomic() doesn't take into account the offset, used
with kmap_atomic(). On platforms, where kunmap_atomic() is not a NOP,
this will lead to problems, when offset != 0.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 0e4998fa6fc5..ac52eb65395e 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -219,9 +219,9 @@ static char *tmio_mmc_kmap_atomic(struct scatterlist *sg, unsigned long *flags) return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset; } -static void tmio_mmc_kunmap_atomic(void *virt, unsigned long *flags) +static void tmio_mmc_kunmap_atomic(struct scatterlist *sg, unsigned long *flags, void *virt) { - kunmap_atomic(virt, KM_BIO_SRC_IRQ); + kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ); local_irq_restore(*flags); } @@ -510,7 +510,7 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host) host->sg_off += count; - tmio_mmc_kunmap_atomic(sg_virt, &flags); + tmio_mmc_kunmap_atomic(host->sg_ptr, &flags, sg_virt); if (host->sg_off == host->sg_ptr->length) tmio_mmc_next_sg(host); @@ -770,7 +770,7 @@ static void tmio_check_bounce_buffer(struct tmio_mmc_host *host) unsigned long flags; void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags); memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length); - tmio_mmc_kunmap_atomic(sg_vaddr, &flags); + tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr); } } @@ -897,7 +897,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host) void *sg_vaddr = tmio_mmc_kmap_atomic(sg, &flags); sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length); memcpy(host->bounce_buf, sg_vaddr, host->bounce_sg.length); - tmio_mmc_kunmap_atomic(sg_vaddr, &flags); + tmio_mmc_kunmap_atomic(sg, &flags, sg_vaddr); host->sg_ptr = &host->bounce_sg; sg = host->sg_ptr; } |