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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-02 10:21:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-02 10:21:04 -0700 |
| commit | 460b48a0fefce25beb0fc0139e721c5691d65d7f (patch) | |
| tree | 44a1ed9be044a41454712bbe349a261526cf45d6 /arch/powerpc/platforms/powernv | |
| parent | b44a1dd3f648a433c525efcdd6ba95ad89d50e27 (diff) | |
| parent | 8b909e3548706cbebc0a676067b81aadda57f47e (diff) | |
| download | linux-460b48a0fefce25beb0fc0139e721c5691d65d7f.tar.bz2 | |
Merge tag 'powerpc-5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A minor fix to our IMC PMU code to print a less confusing error
message when the driver can't initialise properly.
A fix for a bug where a user requesting an unsupported branch sampling
filter can corrupt PMU state, preventing the PMU from counting
properly.
And finally a fix for a bug in our support for kexec_file_load(),
which prevented loading a kernel and initramfs. Most versions of kexec
don't yet use kexec_file_load().
Thanks to: Anju T Sudhakar, Dave Young, Madhavan Srinivasan, Ravi
Bangoria, Thiago Jung Bauermann"
* tag 'powerpc-5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix loading of kernel + initramfs with kexec_file_load()
powerpc/perf: Fix MMCRA corruption by bhrb_filter
powerpc/powernv: Return for invalid IMC domain
Diffstat (limited to 'arch/powerpc/platforms/powernv')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-imc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c index 1b6932890a73..186109bdd41b 100644 --- a/arch/powerpc/platforms/powernv/opal-imc.c +++ b/arch/powerpc/platforms/powernv/opal-imc.c @@ -157,6 +157,10 @@ static int imc_pmu_create(struct device_node *parent, int pmu_index, int domain) struct imc_pmu *pmu_ptr; u32 offset; + /* Return for unknown domain */ + if (domain < 0) + return -EINVAL; + /* memory for pmu */ pmu_ptr = kzalloc(sizeof(*pmu_ptr), GFP_KERNEL); if (!pmu_ptr) |