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Junrui LuoandGreg Kroah-Hartman 3300b04969 staging: sm750fb: fix division by zero in ps_to_hz()

commit 75a1621e4f upstream.

ps_to_hz() is called from hw_sm750_crtc_set_mode() without validating
that pixclock is non-zero. A zero pixclock passed via FBIOPUT_VSCREENINFO
causes a division by zero.

Fix by rejecting zero pixclock in lynxfb_ops_check_var(), consistent
with other framebuffer drivers.

Fixes: 81dee67e21 ("staging: sm750fb: add sm750 to staging")
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB7881AFBFCE28CCF528B35D0CAF4BA@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-06-01 17:38:37 +02:00

axis-fifo

staging: axis-fifo: flush RX FIFO on read errors

2025-10-15 11:56:24 +02:00

board

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emxx_udc

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fbtft

staging: fbtft: core: fix potential memory leak in fbtft_probe_common()

2026-01-11 15:18:29 +01:00

fieldbus