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ALSA: aoa: avoid false-positive format truncation warning

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clang warns about what it interprets as a truncated snprintf:

sound/aoa/soundbus/i2sbus/core.c:171:6: error: 'snprintf' will always be truncated; specified size is 6, but format string expands to at least 7 [-Werror,-Wformat-truncation-non-kprintf]

The actual problem here is that it does not understand the special
%pOFn format string and assumes that it is a pointer followed by
the string "OFn", which would indeed not fit.

Slightly increasing the size of the buffer to its natural alignment
avoids the warning, as it is now long enough for the correct and
the incorrect interprations.

Fixes: b917d58dcf ("ALSA: aoa: Convert to using %pOFn instead of device_node.name")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Message-ID: <20240326223825.4084412-9-arnd@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arnd Bergmann 2024-03-26 23:38:07 +01:00 committed by Takashi Iwai
parent 051e0840ff
commit 7590ac2249
1 changed files with 1 additions and 1 deletions
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2
sound/aoa/soundbus/i2sbus/core.c
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@ -158,7 +158,7 @@ static int i2sbus_add_dev(struct macio_dev *macio,
struct device_node *child, *sound = NULL;
struct resource *r;
int i, layout = 0, rlen, ok = force;
char node_name[6];
char node_name[8];
static const char *rnames[] = { "i2sbus: %pOFn (control)",
"i2sbus: %pOFn (tx)",
"i2sbus: %pOFn (rx)" };