mmc: dw_mmc: Fix null dma_ops access when use_dma is false · 3bfe619dc3 - Gogs

mmc: dw_mmc: Fix null dma_ops access when use_dma is false

host->dma_ops is not valid if host->usa dma is 0 so protect
host->dma_ops reference in dw_mci_resume

Signed-off-by: Jonathan Kliegman <kliegs@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

Jonathan Kliegman 13 years ago

parent

e137788dd1

commit

3bfe619dc3

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
drivers/mmc/host/dw_mmc.c
							 
								View File
							
				@@ -2186,7 +2186,7 @@ int dw_mci_resume(struct dw_mci *host)
			
				 		return ret;
			
				 	}
			
				-	if (host->dma_ops->init)
			
				+	if (host->use_dma && host->dma_ops->init)
			
				 		host->dma_ops->init(host);
			
				 	/* Restore the old value at FIFOTH register */