[PATCH] drivers/net/wireless/hermes.c unsigned int comparision

hermas_bap_pread,  hermes_bap_pwrite, and hermes_bap_pwrite_pad all have a parameter "len" that is declared unsigned,
but checked for a value less than zero. Auditing the callers, it is possible for len to be passed a negative value, so len should be an int.

Thanks to LinuxICC (http://linuxicc.sf.net)
Signed-off-by: Gabriel A. Devenyi <ace@staticwave.ca>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/wireless/hermes.c

@@ -398,7 +398,7 @@ static int hermes_bap_seek(hermes_t *hw, int bap, u16 id, u16 offset)
  *
  * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
  */
-int hermes_bap_pread(hermes_t *hw, int bap, void *buf, unsigned len,
+int hermes_bap_pread(hermes_t *hw, int bap, void *buf, int len,
 		     u16 id, u16 offset)
 {
 	int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;
@@ -424,7 +424,7 @@ int hermes_bap_pread(hermes_t *hw, int bap, void *buf, unsigned len,
  *
  * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
  */
-int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, unsigned len,
+int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, int len,
 		      u16 id, u16 offset)
 {
 	int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;
@@ -450,7 +450,7 @@ int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, unsigned len,
  *
  * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
  */
-int hermes_bap_pwrite_pad(hermes_t *hw, int bap, const void *buf, unsigned data_len, unsigned len,
+int hermes_bap_pwrite_pad(hermes_t *hw, int bap, const void *buf, unsigned data_len, int len,
 		      u16 id, u16 offset)
 {
 	int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;