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authorVincent Stehlé <vincent.stehle@laposte.net>2020-12-13 21:26:22 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2020-12-15 14:50:12 +0300
commitd0edaa28a1f7830997131cbce87b6c52472825d1 (patch)
tree4dbd378e0e0d9df54885a95f1179e1da7fc7aa46
parent328e7e487a464aad024fbde6663b7859df082b7b (diff)
downloadlinux-d0edaa28a1f7830997131cbce87b6c52472825d1.tar.xz
powerpc/ps3: use dma_mapping_error()
The DMA address returned by dma_map_single() should be checked with dma_mapping_error(). Fix the ps3stor_setup() function accordingly. Fixes: 80071802cb9c ("[POWERPC] PS3: Storage Driver Core") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201213182622.23047-1-vincent.stehle@laposte.net
-rw-r--r--drivers/ps3/ps3stor_lib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ps3/ps3stor_lib.c b/drivers/ps3/ps3stor_lib.c
index 333ba83006e4..a12a1ad9b5fe 100644
--- a/drivers/ps3/ps3stor_lib.c
+++ b/drivers/ps3/ps3stor_lib.c
@@ -189,7 +189,7 @@ int ps3stor_setup(struct ps3_storage_device *dev, irq_handler_t handler)
dev->bounce_lpar = ps3_mm_phys_to_lpar(__pa(dev->bounce_buf));
dev->bounce_dma = dma_map_single(&dev->sbd.core, dev->bounce_buf,
dev->bounce_size, DMA_BIDIRECTIONAL);
- if (!dev->bounce_dma) {
+ if (dma_mapping_error(&dev->sbd.core, dev->bounce_dma)) {
dev_err(&dev->sbd.core, "%s:%u: map DMA region failed\n",
__func__, __LINE__);
error = -ENODEV;