diff options
author | Will Deacon <will.deacon@arm.com> | 2014-08-26 18:13:22 +0400 |
---|---|---|
committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-08-28 00:49:45 +0400 |
commit | 18d457661fb9fa69352822ab98d39331c3d0e571 (patch) | |
tree | cbe2377b2344fa08be3a17c610d101c85b75e225 /arch/arm/kvm | |
parent | 4000be423cb01a8d09de878bb8184511c49d4238 (diff) | |
download | linux-18d457661fb9fa69352822ab98d39331c3d0e571.tar.xz |
KVM: ARM/arm64: avoid returning negative error code as bool
is_valid_cache returns true if the specified cache is valid.
Unfortunately, if the parameter passed it out of range, we return
-ENOENT, which ends up as true leading to potential hilarity.
This patch returns false on the failure path instead.
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/kvm')
-rw-r--r-- | arch/arm/kvm/coproc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c index 37a0fe1bb9bb..7928dbdf2102 100644 --- a/arch/arm/kvm/coproc.c +++ b/arch/arm/kvm/coproc.c @@ -791,7 +791,7 @@ static bool is_valid_cache(u32 val) u32 level, ctype; if (val >= CSSELR_MAX) - return -ENOENT; + return false; /* Bottom bit is Instruction or Data bit. Next 3 bits are level. */ level = (val >> 1); |