In sd_revalidate_disk(), the SCSI Disk driver needs a few bytes DMA memory,
allocated by kmalloc() and __GFP_DMA. This patch uses __GFP_DMA only if
the corresponding host structure has unchecked_isa_dma set.
Signed-off-by: Bernhard Walle <[EMAIL PROTECTED]>
---
drivers/scsi/sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6.21-rc4/drivers/scsi/sd.c
===================================================================
--- linux-2.6.21-rc4.orig/drivers/scsi/sd.c
+++ linux-2.6.21-rc4/drivers/scsi/sd.c
@@ -1553,7 +1553,8 @@ static int sd_revalidate_disk(struct gen
if (!scsi_device_online(sdp))
goto out;
- buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL | __GFP_DMA);
+ buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL |
+ (sdp->host->unchecked_isa_dma ? __GFP_DMA : 0));
if (!buffer) {
printk(KERN_WARNING "(sd_revalidate_disk:) Memory allocation "
"failure.\n");
-
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