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authorChris Humbert <mahadri-kernel@drigon.com>2005-11-28 20:29:23 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-05 00:51:39 +0300
commitbd39b7f195e5a780a3c6710eb1c1450f158a1f31 (patch)
tree34c57ff00c5779a571c9ab5f5a592093594f3aee /drivers/usb/core/buffer.c
parent5d3202949c9ac6e135d98bde15a8f05ad3fa5849 (diff)
downloadlinux-bd39b7f195e5a780a3c6710eb1c1450f158a1f31.tar.xz
[PATCH] USB: don't allocate dma pools for PIO HCDs
USB: don't allocate dma pools for PIO HCDs hcd_buffer_alloc() and hcd_buffer_free() have a similar dma_mask check and revert to kmalloc()/kfree(), but hcd_buffer_create() doesn't check dma_mask and allocates unused dma pools. Signed-off-by: Chris Humbert <mahadri-kernel@drigon.com> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/buffer.c')
-rw-r--r--drivers/usb/core/buffer.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 419c9943a7cb..ad742cec94fa 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -55,6 +55,9 @@ int hcd_buffer_create (struct usb_hcd *hcd)
char name [16];
int i, size;
+ if (!hcd->self.controller->dma_mask)
+ return 0;
+
for (i = 0; i < HCD_BUFFER_POOLS; i++) {
if (!(size = pool_max [i]))
continue;