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| author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2018-09-05 04:09:51 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-09-19 14:08:12 +0200 |
| commit | 74422e2b19391e0bb9f11b0ab4522bbf7f93c4ba (patch) | |
| tree | 29d65140dfe2564786cf8b3139f035cfe61d7f65 /arch | |
| parent | powerpc/prom: Remove VLA in prom_check_platform_support() (diff) | |
| download | linux-74422e2b19391e0bb9f11b0ab4522bbf7f93c4ba.tar.xz linux-74422e2b19391e0bb9f11b0ab4522bbf7f93c4ba.zip | |
powerpc/pseries: Remove VLA from lparcfg_write()
In lparcfg_write we hard code kbuf_sz and then use this as the variable
length of kbuf creating a variable length array. Since we're hard coding
the length anyway just define the array using this as the length and
remove the need for kbuf_sz, thus removing the variable length array.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lparcfg.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c index 7c872dc01bdb..8bd590af488a 100644 --- a/arch/powerpc/platforms/pseries/lparcfg.c +++ b/arch/powerpc/platforms/pseries/lparcfg.c @@ -585,8 +585,7 @@ static ssize_t update_mpp(u64 *entitlement, u8 *weight) static ssize_t lparcfg_write(struct file *file, const char __user * buf, size_t count, loff_t * off) { - int kbuf_sz = 64; - char kbuf[kbuf_sz]; + char kbuf[64]; char *tmp; u64 new_entitled, *new_entitled_ptr = &new_entitled; u8 new_weight, *new_weight_ptr = &new_weight; @@ -595,7 +594,7 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf, if (!firmware_has_feature(FW_FEATURE_SPLPAR)) return -EINVAL; - if (count > kbuf_sz) + if (count > sizeof(kbuf)) return -EINVAL; if (copy_from_user(kbuf, buf, count)) |