Den 03.01.2017 17:12, skrev Andy Shevchenko:
On Mon, 2017-01-02 at 13:35 +0200, Andy Shevchenko wrote:
Fall back to usual allocation method if DMA coherent allocation fails.
SPI framework will map and use DMA mapped memory when possible.
Locally I have re-done DMA approach and thus this patch became optional.
Should I leave or remove it? Opinions?
If we use kmalloc always, then this goes away.
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
drivers/staging/fbtft/fbtft-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c
b/drivers/staging/fbtft/fbtft-core.c
index 226be8c09768..9f024986aff4 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -843,7 +843,8 @@ struct fb_info *fbtft_framebuffer_alloc(struct
fbtft_display *display,
if (dma) {
txbuf = dmam_alloc_coherent(dev, txbuflen,
&par->txbuf.dma,
GFP_DMA);
- } else
+ }
+ if (!txbuf)
#endif
{
txbuf = devm_kzalloc(par->info->device,
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