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authorThomas Zimmermann <tzimmermann@suse.de>2023-04-28 15:24:43 +0300
committerThomas Zimmermann <tzimmermann@suse.de>2023-05-08 16:28:33 +0300
commit6ca49268e0c328b441cd0f3387ee8568e33ffdc5 (patch)
tree906450ee1fb8a267466e52f7098aa0571d5c0174 /drivers
parentbdb616479eff419d5f881efbf1485ed098cbdbce (diff)
downloadlinux-6ca49268e0c328b441cd0f3387ee8568e33ffdc5.tar.xz
fbdev/smscufx: Use struct fb_info.screen_buffer
Use info->screen_buffer when reading and writing framebuffers in system memory. It's the correct pointer for this address space. The struct fb_info has a union to store the framebuffer memory. This can either be info->screen_base if the framebuffer is stored in I/O memory, or info->screen_buffer if the framebuffer is stored in system memory. As the driver operates on the latter address space, it is wrong to use .screen_base and .screen_buffer must be used instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-11-tzimmermann@suse.de
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/fbdev/smscufx.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index 2ad6e98ce10d..17cec62cc65d 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -1150,7 +1150,7 @@ static void ufx_free_framebuffer(struct ufx_data *dev)
fb_dealloc_cmap(&info->cmap);
if (info->monspecs.modedb)
fb_destroy_modedb(info->monspecs.modedb);
- vfree(info->screen_base);
+ vfree(info->screen_buffer);
fb_destroy_modelist(&info->modelist);
@@ -1257,7 +1257,7 @@ static int ufx_ops_set_par(struct fb_info *info)
if ((result == 0) && (dev->fb_count == 0)) {
/* paint greenscreen */
- pix_framebuffer = (u16 *) info->screen_base;
+ pix_framebuffer = (u16 *)info->screen_buffer;
for (i = 0; i < info->fix.smem_len / 2; i++)
pix_framebuffer[i] = 0x37e6;
@@ -1303,7 +1303,7 @@ static int ufx_realloc_framebuffer(struct ufx_data *dev, struct fb_info *info)
{
int old_len = info->fix.smem_len;
int new_len;
- unsigned char *old_fb = info->screen_base;
+ unsigned char *old_fb = info->screen_buffer;
unsigned char *new_fb;
pr_debug("Reallocating framebuffer. Addresses will change!");
@@ -1318,12 +1318,12 @@ static int ufx_realloc_framebuffer(struct ufx_data *dev, struct fb_info *info)
if (!new_fb)
return -ENOMEM;
- if (info->screen_base) {
+ if (info->screen_buffer) {
memcpy(new_fb, old_fb, old_len);
- vfree(info->screen_base);
+ vfree(info->screen_buffer);
}
- info->screen_base = new_fb;
+ info->screen_buffer = new_fb;
info->fix.smem_len = PAGE_ALIGN(new_len);
info->fix.smem_start = (unsigned long) new_fb;
info->flags = smscufx_info_flags;
@@ -1746,7 +1746,7 @@ reset_active:
atomic_set(&dev->usb_active, 0);
setup_modes:
fb_destroy_modedb(info->monspecs.modedb);
- vfree(info->screen_base);
+ vfree(info->screen_buffer);
fb_destroy_modelist(&info->modelist);
error:
fb_dealloc_cmap(&info->cmap);