3.8.13.19 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Borislav Petkov <bp@xxxxxxx> commit 9da21b1509d8aa7ab4846722817d16c72d656c91 upstream. Sanitize code even more to accept unsigned longs only and to not allow polling intervals below 1 second as this is unnecessary and doesn't make much sense anyway for polling errors. Signed-off-by: Borislav Petkov <bp@xxxxxxx> Link: http://lkml.kernel.org/r/1391457913-881-1-git-send-email-prarit@xxxxxxxxxx Cc: Doug Thompson <dougthompson@xxxxxxxxxxxx> [ kamal: backport to 3.8 (context) ] Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx> --- drivers/edac/edac_mc.c | 4 ++-- drivers/edac/edac_mc_sysfs.c | 12 ++++++++---- drivers/edac/edac_module.h | 2 +- 3 files changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index d1e9eb1..ab5341c 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -600,7 +600,7 @@ static void edac_mc_workq_teardown(struct mem_ctl_info *mci) * user space has updated our poll period value, need to * reset our workq delays */ -void edac_mc_reset_delay_period(int value) +void edac_mc_reset_delay_period(unsigned long value) { struct mem_ctl_info *mci; struct list_head *item; @@ -610,7 +610,7 @@ void edac_mc_reset_delay_period(int value) list_for_each(item, &mc_devices) { mci = list_entry(item, struct mem_ctl_info, link); - edac_mc_workq_setup(mci, (unsigned long) value); + edac_mc_workq_setup(mci, value); } mutex_unlock(&mem_ctls_mutex); diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index c9303ed..c2b9b7f 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -52,16 +52,20 @@ int edac_mc_get_poll_msec(void) static int edac_set_poll_msec(const char *val, struct kernel_param *kp) { - long l; + unsigned long l; int ret; if (!val) return -EINVAL; - ret = strict_strtol(val, 0, &l); - if (ret == -EINVAL || ((int)l != l)) + ret = kstrtoul(val, 0, &l); + if (ret) + return ret; + + if (l < 1000) return -EINVAL; - *((int *)kp->arg) = l; + + *((unsigned long *)kp->arg) = l; /* notify edac_mc engine to reset the poll period */ edac_mc_reset_delay_period(l); diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h index 3d139c6..f2118bf 100644 --- a/drivers/edac/edac_module.h +++ b/drivers/edac/edac_module.h @@ -52,7 +52,7 @@ extern void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, extern void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev); extern void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, unsigned long value); -extern void edac_mc_reset_delay_period(int value); +extern void edac_mc_reset_delay_period(unsigned long value); extern void *edac_align_ptr(void **p, unsigned size, int n_elems); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html