[PATCH] staging: fbtft: use scnprintf for fixed-size text buffers
flat view
WARM2d
From: LiuJunyuan <hidden>
Date: 2026-10-21 03:26:21
Also in:
dri-devel, linux-staging, lkml
Subsystem:
fbtft framebuffer drivers, staging subsystem, the rest · Maintainers:
Andy Shevchenko, Greg Kroah-Hartman, Linus Torvalds
Replace sprintf() with scnprintf() when formatting the framebuffer description strings into fixed-size buffers. Signed-off-by: LiuJunyuan <redacted> --- drivers/staging/fbtft/fbtft-core.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 7925d974de80..f7751b972a52 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c@@ -785,10 +785,12 @@ int fbtft_register_framebuffer(struct fb_info *fb_info) fbtft_sysfs_init(par); if (par->txbuf.buf && par->txbuf.len >= 1024) - sprintf(text1, ", %zu KiB buffer memory", par->txbuf.len >> 10); + scnprintf(text1, sizeof(text1), ", %zu KiB buffer memory", + par->txbuf.len >> 10); if (spi) - sprintf(text2, ", spi%d.%d at %d MHz", spi->controller->bus_num, - spi_get_chipselect(spi, 0), spi->max_speed_hz / 1000000); + scnprintf(text2, sizeof(text2), ", spi%d.%d at %d MHz", + spi->controller->bus_num, spi_get_chipselect(spi, 0), + spi->max_speed_hz / 1000000); fb_dbg(fb_info, "%s frame buffer, %dx%d, %d KiB video memory%s, fps=%lu%s\n", fb_info->fix.id, fb_info->var.xres, fb_info->var.yres,
--
2.43.0