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| author | Takashi Iwai <tiwai@suse.de> | 2015-08-07 13:53:41 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-08-07 13:53:41 +0200 |
| commit | 6ac7ada210a8d23a56fbf18b6e1e00528844565c (patch) | |
| tree | f62352a9b08e560f41cd4008ec0029b6b026d3a5 /arch/x86/kernel/step.c | |
| parent | 73851b36fe73819f8c201971e913324d4846a7ea (diff) | |
| parent | d00a9e02178401433fc386e69c936f2039f07b57 (diff) | |
| download | linux-6ac7ada210a8d23a56fbf18b6e1e00528844565c.tar.bz2 | |
Merge tag 'asoc-fix-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.2
There are a couple of small driver specific fixes here but the
overwhelming bulk of these changes are fixes to the topology ABI that
has been newly introduced in v4.2. Once this makes it into a release we
will have to firm this up but for now getting enhancements in before
they've made it into a release is the most expedient thing.
Diffstat (limited to 'arch/x86/kernel/step.c')
| -rw-r--r-- | arch/x86/kernel/step.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index 9b4d51d0c0d0..6273324186ac 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -5,6 +5,7 @@ #include <linux/mm.h> #include <linux/ptrace.h> #include <asm/desc.h> +#include <asm/mmu_context.h> unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs) { @@ -30,10 +31,11 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re seg &= ~7UL; mutex_lock(&child->mm->context.lock); - if (unlikely((seg >> 3) >= child->mm->context.size)) + if (unlikely(!child->mm->context.ldt || + (seg >> 3) >= child->mm->context.ldt->size)) addr = -1L; /* bogus selector, access would fault */ else { - desc = child->mm->context.ldt + seg; + desc = &child->mm->context.ldt->entries[seg]; base = get_desc_base(desc); /* 16-bit code segment? */ |