Use struct option_iter to walk over the individual options in the
driver's option string. Replaces the hand-written strsep() loop with
a clean interface. The helpers for struct option_iter handle empty
option strings and empty options transparently. The struct's _init
and _release functions duplicate and release the option string's
memory buffer as needed.
Done in preparation of constifying the option string.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/video/fbdev/pvr2fb.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index f6be2649840d..c332f2c38114 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -46,6 +46,7 @@
#undef DEBUG
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -1025,20 +1026,18 @@ static void pvr2fb_pci_exit(void)
*/
#ifndef MODULE
-static int __init pvr2fb_setup(char *options)
+static int __init pvr2fb_setup(const char *options)
{
- char *this_opt;
char cable_arg[80];
char output_arg[80];
-
- if (!options || !*options)
- return 0;
+ struct option_iter iter;
+ char *this_opt;
cable_arg[0] = output_arg[0] = 0;
- while ((this_opt = strsep(&options, ","))) {
- if (!*this_opt)
- continue;
+ option_iter_init(&iter, options);
+
+ while (option_iter_next(&iter, &this_opt)) {
if (!strcmp(this_opt, "inverse")) {
fb_invert_cmaps();
} else if (!strncmp(this_opt, "cable:", 6)) {
@@ -1056,6 +1055,8 @@ static int __init pvr2fb_setup(char *options)
}
}
+ option_iter_release(&iter);
+
if (*cable_arg)
cable_type = pvr2_get_param_val(cables, cable_arg, 3);
if (*output_arg)
--
2.39.2
