iio: proximity: isl29501: Fix return type of isl29501_register_writegrafted

isl29501_register_write() was returning a u32 instead of an int.
Since the function returns negative error codes (such as -ERANGE or
return values from i2c_smbus_write_byte_data()), returning an unsigned
integer type prevents callers from correctly checking for negative error
conditions.

Fix this by changing the function return type from u32 to int.

This was found through manual code review.

Fixes: 1c28799257bc ("iio: light: isl29501: Add support for the ISL29501 ToF sensor.")
Signed-off-by: Salah Triki <salah.triki@gmail.com>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/crypto/ripemd.h b/crypto/ripemd.h
new file mode 100644
index 000000000..b977785e2
--- /dev/null
+++ b/crypto/ripemd.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for RIPEMD algorithms
+ */
+
+#ifndef _CRYPTO_RMD_H
+#define _CRYPTO_RMD_H
+
+#define RMD160_DIGEST_SIZE      20
+#define RMD160_BLOCK_SIZE       64
+
+/* initial values  */
+#define RMD_H0  0x67452301UL
+#define RMD_H1  0xefcdab89UL
+#define RMD_H2  0x98badcfeUL
+#define RMD_H3  0x10325476UL
+#define RMD_H4  0xc3d2e1f0UL
+
+/* constants */
+#define RMD_K1  0x00000000UL
+#define RMD_K2  0x5a827999UL
+#define RMD_K3  0x6ed9eba1UL
+#define RMD_K4  0x8f1bbcdcUL
+#define RMD_K5  0xa953fd4eUL
+#define RMD_K6  0x50a28be6UL
+#define RMD_K7  0x5c4dd124UL
+#define RMD_K8  0x6d703ef3UL
+#define RMD_K9  0x7a6d76e9UL
+
+#endif