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Sun, 12 Apr 2026 06:00:36 -0700 (PDT) From: Nguyen Duc Thinh To: Luka Gejak Cc: gregkh@linuxfoundation.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Gabriel Rondon Subject: [PATCH v3 1/2] staging: most: dim2: replace BUG_ON() in poison_channel() Date: Sun, 12 Apr 2026 20:00:11 +0700 Message-ID: <20260412130012.5832-2-ducthinh100812@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260412130012.5832-1-ducthinh100812@gmail.com> References: <20260412130012.5832-1-ducthinh100812@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Gabriel Rondon 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 Link: https://patch.msgid.link/20260330182255.75241-6-grondon@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/staging/most/dim2/dim2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c index 23230a32c2cb..7953d4626752 100644 --- 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; -- 2.47.3