[PATCH 009/149] USB: r8a66597-hcd: fix NULL access
Greg Kroah-Hartman <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
From: Yoshihiro Shimoda <[email protected]> This patch fixes the problem that accesses NULL pointer when disconnected a cable while play music with usb-speaker. Signed-off-by: Yoshihiro Shimoda <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/host/r8a66597-hcd.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index af13f1f..a7a7070 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -47,7 +47,7 @@ MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Yoshihiro Shimoda"); -#define DRIVER_VERSION "9 May 2007" +#define DRIVER_VERSION "29 May 2007" static const char hcd_name[] = "r8a66597_hcd"; @@ -544,6 +544,9 @@ static void pipe_toggle_restore(struct r8a66597 *r8a66597, unsigned char endpoint = usb_pipeendpoint(urb->pipe); unsigned short *toggle = get_toggle_pointer(dev, urb->pipe); + if (!toggle) + return; + r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint)); } -- 1.5.2.2 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel