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authorOlof Johansson <olof@lixom.net>2012-03-13 16:08:06 -0700
committerOlof Johansson <olof@lixom.net>2012-03-13 16:08:06 -0700
commite3643b77de143c5548ec93abd8aa68f4123295ea (patch)
tree41981957bc93e8211fe55cd04b7cac47e74bc770 /include/linux/regset.h
parent86ca5b6fef2bf1aa77a62f29d844400e4fed8dde (diff)
parent44b2cef5ae6da48523fa634230ca66107110a7dd (diff)
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Merge branch 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
* 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver ARM: EXYNOS: add clock registers for exynos4x12-cpufreq PM / devfreq: update the name of EXYNOS clock registers that were omitted PM / devfreq: update the name of EXYNOS clock register ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock ARM: EXYNOS: use static declaration on regarding clock ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs (includes an update to v3.3-rc6)
Diffstat (limited to 'include/linux/regset.h')
-rw-r--r--include/linux/regset.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/regset.h b/include/linux/regset.h
index 8abee65..686f373 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -335,8 +335,11 @@ static inline int copy_regset_to_user(struct task_struct *target,
{
const struct user_regset *regset = &view->regsets[setno];
+ if (!regset->get)
+ return -EOPNOTSUPP;
+
if (!access_ok(VERIFY_WRITE, data, size))
- return -EIO;
+ return -EFAULT;
return regset->get(target, regset, offset, size, NULL, data);
}
@@ -358,8 +361,11 @@ static inline int copy_regset_from_user(struct task_struct *target,
{
const struct user_regset *regset = &view->regsets[setno];
+ if (!regset->set)
+ return -EOPNOTSUPP;
+
if (!access_ok(VERIFY_READ, data, size))
- return -EIO;
+ return -EFAULT;
return regset->set(target, regset, offset, size, NULL, data);
}