staging: fbtft: Use sysfs_emit_at() to print to sysfs file

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This scnprintf() uses the wrong limit.  It should be "PAGE_SIZE - len"
instead of just PAGE_SIZE.  We're not going to hit the limit in real
life since we are printing at most FBTFT_GAMMA_MAX_VALUES_TOTAL (128)
u32 values, however, it's still worth fixing.

Use sysfs_emit_at() to fix this since this is a sysfs file.

Fixes: c296d5f995 ("staging: fbtft: core support")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/ah_Y_Y2RtqeGxchF@stanley.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Dan Carpenter 2026-06-03 10:34:21 +03:00 • committed by Greg Kroah-Hartman

parent 6d45195a96

commit 221192a784

1 changed files with 1 additions and 1 deletions

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drivers/staging/fbtft/fbtft-sysfs.c

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