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hid: intel-ish-hid: Fix uninitialized variable 'rv' in ish_fw_xfer_direct_dma

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commit d41bff05a61fb539f21e9bf0d39fac77f457434e upstream.

Fix the uninitialized symbol 'rv' in the function ish_fw_xfer_direct_dma
to resolve the following warning from the smatch tool:
drivers/hid/intel-ish-hid/ishtp-fw-loader.c:714 ish_fw_xfer_direct_dma()
error: uninitialized symbol 'rv'.
Initialize 'rv' to 0 to prevent undefined behavior from uninitialized
access.

Cc: [email protected]
Fixes: 91b228107d ("HID: intel-ish-hid: ISH firmware loader client driver")
Signed-off-by: SurajSonawane2415 <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
SurajSonawane2415 2024-10-04 13:29:44 +05:30 • committed by Greg Kroah-Hartman
commit 7f435eba84
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/intel-ish-hid/ishtp-fw-loader.c
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@ -630,7 +630,7 @@ static int ish_fw_xfer_direct_dma(struct ishtp_cl_data *client_data,
const struct firmware *fw,
const struct shim_fw_info fw_info)
{
int rv;
int rv = 0;
void *dma_buf;
dma_addr_t dma_buf_phy;
u32 fragment_offset, fragment_size, payload_max_size;