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| author | Timur Tabi <timur@freescale.com> | 2007-03-15 09:48:53 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-03-26 17:06:22 -0500 |
| commit | de74f70360353929009f8611f3bb8fbb4f030527 (patch) | |
| tree | 57e85e2dc75862d6fd64f963674c4ccfe4a5c3ba /arch/powerpc | |
| parent | 8b03336752e664880182a8f50e1807edc7fe93d4 (diff) | |
| download | blackbird-op-linux-de74f70360353929009f8611f3bb8fbb4f030527.tar.gz blackbird-op-linux-de74f70360353929009f8611f3bb8fbb4f030527.zip | |
[POWERPC] QE: fix invalid pointer usage in ucc_slow_init()
In two places, ucc_slow_init() passes a physical address instead of the
virtual address to functions that were expecting the latter, causing a kernel
panic. us_info->regs contains the physical address of the UCC register set.
The registers are ioremap'd to kernel space, and the virtual pointers are
stored in us_regs. The code was using us_info->regs when it should have been
using us_regs.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/ucc_slow.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c index 817df73ecf56..b930d686a4d1 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c +++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c @@ -187,7 +187,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc uccs->us_pram = qe_muram_addr(uccs->us_pram_offset); /* Init Guemr register */ - if ((ret = ucc_init_guemr((struct ucc_common *) (us_info->regs)))) { + if ((ret = ucc_init_guemr((struct ucc_common *) us_regs))) { printk(KERN_ERR "%s: cannot init GUEMR", __FUNCTION__); ucc_slow_free(uccs); return ret; @@ -195,7 +195,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc /* Set UCC to slow type */ if ((ret = ucc_set_type(us_info->ucc_num, - (struct ucc_common *) (us_info->regs), + (struct ucc_common *) us_regs, UCC_SPEED_TYPE_SLOW))) { printk(KERN_ERR "%s: cannot set UCC type", __FUNCTION__); ucc_slow_free(uccs); |
