ALSA: rme9652: fix format overflow warnings

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gcc-7 warns about a possible sprintf format string overflow with a
temporary buffer that is used to print from another buffer of the same
size:

sound/pci/rme9652/hdspm.c: In function 'snd_hdspm_create_alsa_devices':
sound/pci/rme9652/hdspm.c:2123:17: error: ' MIDIoverMADI' directive writing 13 bytes into a region of size between 1 and 32 [-Werror=format-overflow=]

This extends the temporary buffer to twice the size, and changes
the code to use the safer snprintf() across the entire file.
The longer buffer is still necessary to avoid a format-truncation
warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Arnd Bergmann 2017-07-18 13:48:09 +02:00 • committed by Takashi Iwai

parent c6e486ffb2

commit 7ad210ace5

1 changed files with 28 additions and 20 deletions

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sound/pci/rme9652/hdspm.c

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