diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-14 18:32:43 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-04-14 15:31:17 +0200 |
| commit | ada018b15ccecbdb95df46db7121516edb906bf6 (patch) | |
| tree | c64c85a96f32cdc3c9184d91be39030c139a7fb0 /arch | |
| parent | Linux 5.7-rc1 (diff) | |
| download | linux-ada018b15ccecbdb95df46db7121516edb906bf6.tar.xz linux-ada018b15ccecbdb95df46db7121516edb906bf6.zip | |
x86/mce/amd: Do proper cleanup on error paths
Drop kobject reference counts properly on error in the banks and blocks
allocation functions.
[ bp: Write commit message. ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200403161943.1458-2-bp@alien8.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/mce/amd.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c index 52de616a8065..477cf773cf1c 100644 --- a/arch/x86/kernel/cpu/mce/amd.c +++ b/arch/x86/kernel/cpu/mce/amd.c @@ -1267,13 +1267,12 @@ recurse: if (b) kobject_uevent(&b->kobj, KOBJ_ADD); - return err; + return 0; out_free: if (b) { - kobject_put(&b->kobj); list_del(&b->miscj); - kfree(b); + kobject_put(&b->kobj); } return err; } @@ -1339,6 +1338,7 @@ static int threshold_create_bank(unsigned int cpu, unsigned int bank) goto out; } + /* Associate the bank with the per-CPU MCE device */ b->kobj = kobject_create_and_add(name, &dev->kobj); if (!b->kobj) { err = -EINVAL; @@ -1357,16 +1357,17 @@ static int threshold_create_bank(unsigned int cpu, unsigned int bank) err = allocate_threshold_blocks(cpu, b, bank, 0, msr_ops.misc(bank)); if (err) - goto out_free; + goto out_kobj; per_cpu(threshold_banks, cpu)[bank] = b; return 0; - out_free: +out_kobj: + kobject_put(b->kobj); +out_free: kfree(b); - - out: +out: return err; } |