diff options
| author | Nathan Chancellor <[email protected]> | 2024-07-01 09:24:16 -0700 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2024-07-01 17:50:50 +0100 |
| commit | f4662e6d51ffc0826f975429d3c1b6d1f1a295f1 (patch) | |
| tree | 12c4b6160d30633cc42d65add43b55171e222a2a | |
| parent | 4381b88b24a2edf9ce130adc9acd53258ba44116 (diff) | |
ASoC: fsl: lpc3xxx-i2s: Avoid using ret uninitialized in lpc32xx_i2s_probe()
clang points out that ret may be used uninitialized in
lpc32xx_i2s_probe() in an error pointer path (which becomes fatal with
CONFIG_WERROR):
sound/soc/fsl/lpc3xxx-i2s.c:326:47: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized]
326 | "failed to init register map: %d\n", ret);
| ^~~
sound/soc/fsl/lpc3xxx-i2s.c:310:9: note: initialize the variable 'ret' to silence this warning
310 | int ret;
| ^
| = 0
1 error generated.
One solution would be a small refactoring of the second parameter in
dev_err_probe(), PTR_ERR(i2s_info_p->regs), to be the value of ret in
the if statement. However, a nicer solution for debugging purposes,
which is the point of this statement, would be to use the '%pe'
specifier to symbolically print the error pointer value. Do so, which
eliminates the uninitialized use of ret, clearing up the warning.
Fixes: 0959de657a10 ("ASoC: fsl: Add i2s and pcm drivers for LPC32xx CPUs")
Signed-off-by: Nathan Chancellor <[email protected]>
Link: https://patch.msgid.link/20240701-lpc32xx-asoc-fix-uninitialized-ret-v1-1-985d86189739@kernel.org
Signed-off-by: Mark Brown <[email protected]>
| -rw-r--r-- | sound/soc/fsl/lpc3xxx-i2s.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/fsl/lpc3xxx-i2s.c b/sound/soc/fsl/lpc3xxx-i2s.c index 0e5b4d5202ff..af995ca081a3 100644 --- a/sound/soc/fsl/lpc3xxx-i2s.c +++ b/sound/soc/fsl/lpc3xxx-i2s.c @@ -323,7 +323,7 @@ static int lpc32xx_i2s_probe(struct platform_device *pdev) i2s_info_p->regs = devm_regmap_init_mmio(dev, iomem, &lpc32xx_i2s_regconfig); if (IS_ERR(i2s_info_p->regs)) return dev_err_probe(dev, PTR_ERR(i2s_info_p->regs), - "failed to init register map: %d\n", ret); + "failed to init register map: %pe\n", i2s_info_p->regs); i2s_info_p->clk = devm_clk_get(dev, NULL); if (IS_ERR(i2s_info_p->clk)) |