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dmaengine: cirrus: check that output may be truncated

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ep93xx_dma.c: In function 'ep93xx_dma_of_probe':
ep93xx_dma.c:1409:74: warning: '%u' directive output may be truncated
			       writing between 1 and 8 bytes into a region
			       of size 2 [-Wformat-truncation=]
		snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i);
		                                                 ^~

Fixes: d7333f9d33 ("dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409172024.pU8U5beA-lkp@intel.com/
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/2bf9c37aad8f085839f9c63104f7275742f51945.camel@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Alexander Sverdlin 2024-09-21 01:21:55 +02:00 committed by Arnd Bergmann
parent 5b484feb7a
commit 26d77ce574
No known key found for this signature in database
GPG Key ID: 60AB47FFC9095227
1 changed files with 5 additions and 2 deletions
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7
drivers/dma/ep93xx_dma.c
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@ -1391,6 +1391,7 @@ static struct ep93xx_dma_engine *ep93xx_dma_of_probe(struct platform_device *pde
INIT_LIST_HEAD(&dma_dev->channels);
for (i = 0; i < edma->num_channels; i++) {
struct ep93xx_dma_chan *edmac = &edma->channels[i];
int len;
edmac->chan.device = dma_dev;
edmac->regs = devm_platform_ioremap_resource(pdev, i);
@ -1404,9 +1405,11 @@ static struct ep93xx_dma_engine *ep93xx_dma_of_probe(struct platform_device *pde
edmac->edma = edma;
if (edma->m2m)
snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i);
len = snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i);
else
snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i);
len = snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i);
if (len >= sizeof(dma_clk_name))
return ERR_PTR(-ENOBUFS);
edmac->clk = devm_clk_get(dev, dma_clk_name);
if (IS_ERR(edmac->clk)) {