On Tue, May 14, 2013 at 04:33:38PM +0800, Chen Gang wrote: > > HCF_MAX_NAME_LEN is 32, which may less than ''probe_rsp->rawData[1]'', > so need check the length when copy to ssid. > > Type of 'probe_rsp->rawData[1]' is 'hcf_8' which is 'unsigned char', > better to cast to 'int' to avoid related warning. > > For compiling, 'min()' is defined in include/linux/kernel.h, it has > '(void) (&_min1 == &_min2);', so if no type cast, the compiler will > report 'pointer types lacks a cast': > > drivers/staging/wlags49_h2/wl_main.c:3174:122: warning: comparison of distinct pointer types lacks a cast [enabled by default] > > > Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> > --- > drivers/staging/wlags49_h2/wl_main.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/drivers/staging/wlags49_h2/wl_main.c b/drivers/staging/wlags49_h2/wl_main.c > index f28f15b..2e089dc 100644 > --- a/drivers/staging/wlags49_h2/wl_main.c > +++ b/drivers/staging/wlags49_h2/wl_main.c > @@ -3171,7 +3171,8 @@ void wl_process_mailbox( struct wl_private *lp ) > > memset( ssid, 0, sizeof( ssid )); > strncpy( ssid, &probe_rsp->rawData[2], > - probe_rsp->rawData[1] ); > + min((int)probe_rsp->rawData[1], > + HCF_MAX_NAME_LEN - 1)); If you ever find yourself casting a type in a min() call, use the min_t() call instead. Care to try again? thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
