spi: ftssp010_spi: Use to_ftssp010_spi() to ensure free correct address

Don't assume slave is always the first member of struct ftssp010_spi. Use to_ftssp010_spi() to ensure free correct address in spi_free_slave(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>

spi: ftssp010_spi: Use to_ftssp010_spi() to ensure free correct address
Don't assume slave is always the first member of struct ftssp010_spi. Use to_ftssp010_spi() to ensure free correct address in spi_free_slave(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Axel Lin · Jagannadha Sutradharudu Teki
1 parent aa8306a90e
Showing 1 changed file with 3 additions and 1 deletions Side-by-side Diff
drivers/spi/ftssp010_spi.c
@@ -431,7 +431,9 @@
  
 void spi_free_slave(struct spi_slave *slave)
 {
-	free(slave);
+	struct ftssp010_spi *chip = to_ftssp010_spi(slave);
+
+	free(chip);
 }
  
 int spi_claim_bus(struct spi_slave *slave)
...	...	@@ -431,7 +431,9 @@
431	431
432	432	void spi_free_slave(struct spi_slave *slave)
433	433	{
434		- free(slave);
	434	+ struct ftssp010_spi *chip = to_ftssp010_spi(slave);
	435	+
	436	+ free(chip);
435	437	}
436	438
437	439	int spi_claim_bus(struct spi_slave *slave)