diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/proc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index ddde0ef9ccdc..b4f1674fca79 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -27,6 +27,10 @@ static int irq_affinity_read_proc(char *page, char **start, off_t off, return len; } +#ifndef is_affinity_mask_valid +#define is_affinity_mask_valid(val) 1 +#endif + int no_irq_affinity; static int irq_affinity_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data) @@ -42,6 +46,9 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer, if (err) return err; + if (!is_affinity_mask_valid(new_value)) + return -EINVAL; + /* * Do not allow disabling IRQs completely - it's a too easy * way to make the system unusable accidentally :-) At least |