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| author | Peter Suti <peter.suti@streamunlimited.com> | 2022-07-27 09:35:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-28 10:42:42 +0200 |
| commit | 81e878887ff82a7dd42f22951391069a5d520627 (patch) | |
| tree | a0aededad7853a827fd45b225a03dd26bb67f2b1 /drivers/staging/fbtft | |
| parent | 2b5002e2cc1483b6333d31e21902b78a1997909e (diff) | |
| download | lwn-81e878887ff82a7dd42f22951391069a5d520627.tar.gz lwn-81e878887ff82a7dd42f22951391069a5d520627.zip | |
staging: fbtft: core: set smem_len before fb_deferred_io_init call
The fbtft_framebuffer_alloc() calls fb_deferred_io_init() before
initializing info->fix.smem_len. It is set to zero by the
framebuffer_alloc() function. It will trigger a WARN_ON() at the
start of fb_deferred_io_init() and the function will not do anything.
Fixes: 856082f021a2 ("fbdev: defio: fix the pagelist corruption")
Signed-off-by: Peter Suti <peter.suti@streamunlimited.com>
Link: https://lore.kernel.org/r/20220727073550.1491126-1-peter.suti@streamunlimited.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft')
| -rw-r--r-- | drivers/staging/fbtft/fbtft-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index 9b3eaed80cdd..afaba94d1d1c 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -654,7 +654,6 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, fbdefio->delay = HZ / fps; fbdefio->sort_pagereflist = true; fbdefio->deferred_io = fbtft_deferred_io; - fb_deferred_io_init(info); snprintf(info->fix.id, sizeof(info->fix.id), "%s", dev->driver->name); info->fix.type = FB_TYPE_PACKED_PIXELS; @@ -665,6 +664,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, info->fix.line_length = width * bpp / 8; info->fix.accel = FB_ACCEL_NONE; info->fix.smem_len = vmem_size; + fb_deferred_io_init(info); info->var.rotate = pdata->rotate; info->var.xres = width; |