[PATCH] sh: dma: use strscpy in register_dmac
From: Thorsten Blum <thorsten.blum@linux.dev>
Date: 2026-05-10 16:11:22
Also in:
lkml
Subsystem:
superh, the rest · Maintainers:
Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Linus Torvalds
Replace memcpy() and the hard-coded string length with strscpy() to improve register_dmac(). Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> --- arch/sh/drivers/dma/dma-api.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index 87e5a8928873..31b614358270 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c@@ -16,6 +16,7 @@ #include <linux/mm.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/string.h> #include <asm/dma.h> DEFINE_SPINLOCK(dma_spin_lock);
@@ -232,7 +233,7 @@ int register_dmac(struct dma_info *info) chan->chan = info->first_channel_nr + i; chan->vchan = info->first_channel_nr + i + total_channels; - memcpy(chan->dev_id, "Unused", 7); + strscpy(chan->dev_id, "Unused"); if (info->flags & DMAC_CHANNELS_TEI_CAPABLE) chan->flags |= DMA_TEI_CAPABLE;