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/pm3fb.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/video/fbdev/pm3fb.c b/drivers/video/fbdev/pm3fb.c
index b6b378e7554d..c4d4f08b4114 100644
--- a/drivers/video/fbdev/pm3fb.c
+++ b/drivers/video/fbdev/pm3fb.c
@@ -23,6 +23,7 @@
*/
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -1510,18 +1511,16 @@ MODULE_DEVICE_TABLE(pci, pm3fb_id_table);
* Only necessary if your driver takes special options,
* otherwise we fall back on the generic fb_setup().
*/
-static int __init pm3fb_setup(char *options)
+static int __init pm3fb_setup(const char *options)
{
+ struct option_iter iter;
char *this_opt;
/* Parse user specified options (`video=pm3fb:') */
- if (!options || !*options)
- return 0;
+ option_iter_init(&iter, options);
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt)
- continue;
- else if (!strncmp(this_opt, "noaccel", 7))
+ while (option_iter_next(&iter, &this_opt)) {
+ if (!strncmp(this_opt, "noaccel", 7))
noaccel = 1;
else if (!strncmp(this_opt, "hwcursor=", 9))
hwcursor = simple_strtoul(this_opt + 9, NULL, 0);
@@ -1533,6 +1532,9 @@ static int __init pm3fb_setup(char *options)
mode_option = mode_option_buf;
}
}
+
+ option_iter_release(&iter);
+
return 0;
}
#endif /* MODULE */
--
2.39.2
