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path: root/recipes/linux/linux-2.6.18/mmc-core-dma-fix.patch
blob: 4106970035da559eb217bb60b08fa7caab66f0d4 (plain)
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Index: linux-2.6.18-avr32/drivers/mmc/mmc.c
===================================================================
--- linux-2.6.18-avr32.orig/drivers/mmc/mmc.c	2007-01-04 09:54:56.000000000 +0100
+++ linux-2.6.18-avr32/drivers/mmc/mmc.c	2007-01-04 09:58:08.000000000 +0100
@@ -961,6 +961,7 @@ static void mmc_read_scrs(struct mmc_hos
 	struct mmc_command cmd;
 	struct mmc_data data;
 	struct scatterlist sg;
+	u32 *buf;
 
 	list_for_each_entry(card, &host->cards, node) {
 		if (card->state & (MMC_STATE_DEAD|MMC_STATE_PRESENT))
@@ -1008,7 +1009,8 @@ static void mmc_read_scrs(struct mmc_hos
 		mrq.cmd = &cmd;
 		mrq.data = &data;
 
-		sg_init_one(&sg, (u8*)card->raw_scr, 8);
+		buf = kmalloc(8, GFP_KERNEL);
+		sg_init_one(&sg, (u8*)buf, 8);
 
 		mmc_wait_for_req(host, &mrq);
 
@@ -1017,8 +1019,8 @@ static void mmc_read_scrs(struct mmc_hos
 			continue;
 		}
 
-		card->raw_scr[0] = ntohl(card->raw_scr[0]);
-		card->raw_scr[1] = ntohl(card->raw_scr[1]);
+		card->raw_scr[0] = ntohl(buf[0]);
+		card->raw_scr[1] = ntohl(buf[1]);
 
 		mmc_decode_scr(card);
 	}