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can: mcp251xfd: mcp251xfd_register_get_dev_id(): fix return of error value

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commit fa7b514d2b upstream.

Clang static analysis reports this issue:

| mcp251xfd-core.c:1813:7: warning: The left operand
|   of '&' is a garbage value
|   FIELD_GET(MCP251XFD_REG_DEVID_ID_MASK, dev_id),
|   ^                                      ~~~~~~

dev_id is set in a successful call to mcp251xfd_register_get_dev_id().
Though the status of calls made by mcp251xfd_register_get_dev_id() are
checked and handled, their status' are not returned. So return err.

Fixes: 55e5b97f00 ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Link: https://lore.kernel.org/all/20220319153128.2164120-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tom Rix
2022-03-19 08:31:28 -07:00
committed by Greg Kroah-Hartman
parent ef0acc5141
commit 3b9fabe8f6
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
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@@ -2578,7 +2578,7 @@ mcp251xfd_register_get_dev_id(const struct mcp251xfd_priv *priv,
out_kfree_buf_rx: out_kfree_buf_rx:
kfree(buf_rx); kfree(buf_rx);
return 0; return err;
} }
#define MCP251XFD_QUIRK_ACTIVE(quirk) \ #define MCP251XFD_QUIRK_ACTIVE(quirk) \