staging: most: dim2: replace BUG_ON() in poison_channel()

Replace BUG_ON() range check on ch_idx with a return of -EINVAL.

BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).

Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-6-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
index 23230a32c2cbd1d3b7a1c2104ad9176483d8776b..7953d4626752fbcce0c50b9bdf82f7bfabb70110 100644 (file)
--- a/drivers/staging/most/dim2/dim2.c
+++ b/drivers/staging/most/dim2/dim2.c
@@ -647,7 +647,8 @@ static int poison_channel(struct most_interface *most_iface, int ch_idx)
        u8 hal_ret;
        int ret = 0;
 
-       BUG_ON(ch_idx < 0 || ch_idx >= DMA_CHANNELS);
+       if (ch_idx < 0 || ch_idx >= DMA_CHANNELS)
+               return -EINVAL;
 
        if (!hdm_ch->is_initialized)
                return -EPERM;