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drm/amdgpu: use u32 for buf size in __amdgpu_eeprom_xfer

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And also make sure the value of msg[1].len should be in the range of u16.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tao Zhou
2024-05-20 16:47:32 +08:00
committed by Alex Deucher
parent fda812ebe3
commit 76bec2a031
1 changed files with 5 additions and 5 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_eeprom.c
+5 -5
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@@ -90,7 +90,7 @@
#define MAKE_I2C_ADDR(_aa) ((0xA << 3) | (((_aa) >> 16) & 0xF))
static int __amdgpu_eeprom_xfer(struct i2c_adapter *i2c_adap, u32 eeprom_addr,
u8 *eeprom_buf, u16 buf_size, bool read)
u8 *eeprom_buf, u32 buf_size, bool read)
{
u8 eeprom_offset_buf[EEPROM_OFFSET_SIZE];
struct i2c_msg msgs[] = {
@@ -133,15 +133,15 @@ static int __amdgpu_eeprom_xfer(struct i2c_adapter *i2c_adap, u32 eeprom_addr,
* cycle begins. This is implied for the
* "i2c_transfer()" abstraction.
*/
len = min(EEPROM_PAGE_SIZE - (eeprom_addr &
EEPROM_PAGE_MASK),
(u32)buf_size);
len = min(EEPROM_PAGE_SIZE - (eeprom_addr & EEPROM_PAGE_MASK),
buf_size);
} else {
/* Reading from the EEPROM has no limitation
* on the number of bytes read from the EEPROM
* device--they are simply sequenced out.
* Keep in mind that i2c_msg.len is u16 type.
*/
len = buf_size;
len = min(U16_MAX, buf_size);
}
msgs[1].len = len;
msgs[1].buf = eeprom_buf;