Messages in this thread Patch in this message | | | From | David Lechner <> | Subject | [PATCH] drm/tinydrm: mipi-dbi: Fix unbalanced DMA access | Date | Tue, 1 Aug 2017 15:14:26 -0500 |
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If we return here and import_attach is true, then dma_buf_end_cpu_access() will not be called balance dma_buf_begin_cpu_access().
Fix by setting ret instead of returning.
Signed-off-by: David Lechner <david@lechnology.com> --- drivers/gpu/drm/tinydrm/mipi-dbi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c index c83eeb7..e10fa4b 100644 --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c @@ -183,7 +183,8 @@ static int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb, dev_err_once(fb->dev->dev, "Format is not supported: %s\n", drm_get_format_name(fb->format->format, &format_name)); - return -EINVAL; + ret = -EINVAL; + break; } if (import_attach) -- 2.7.4
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