rfkill: use strict_strtoul (v2)

Switch sysfs parsing to something that actually works properly.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index 47e0b2d232e..173d039d990 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -402,12 +402,16 @@ static ssize_t rfkill_state_store(struct device *dev,
                                   const char *buf, size_t count)
 {
         struct rfkill *rfkill = to_rfkill(dev);
-        unsigned int state = simple_strtoul(buf, NULL, 0);
+        unsigned long state;
         int error;
 
         if (!capable(CAP_NET_ADMIN))
                 return -EPERM;
 
+        error = strict_strtoul(buf, 0, &state);
+        if (error)
+                return error;
+
         /* RFKILL_STATE_HARD_BLOCKED is illegal here... */
         if (state != RFKILL_STATE_UNBLOCKED &&
             state != RFKILL_STATE_SOFT_BLOCKED)
@@ -435,7 +439,8 @@ static ssize_t rfkill_claim_store(struct device *dev,
                                   const char *buf, size_t count)
 {
         struct rfkill *rfkill = to_rfkill(dev);
-        bool claim = !!simple_strtoul(buf, NULL, 0);
+        unsigned long claim_tmp;
+        bool claim;
         int error;
 
         if (!capable(CAP_NET_ADMIN))
@@ -444,6 +449,11 @@ static ssize_t rfkill_claim_store(struct device *dev,
         if (rfkill->user_claim_unsupported)
                 return -EOPNOTSUPP;
 
+        error = strict_strtoul(buf, 0, &claim_tmp);
+        if (error)
+                return error;
+        claim = !!claim_tmp;
+
         /*
          * Take the global lock to make sure the kernel is not in
          * the middle of rfkill_switch_all