Hello Ferruh Yigit,
The patch 67bf12ca50d5: "Input: cyttsp4 - SPI driver for Cypress
TMA4XX touchscreen devices" from Jun 30, 2013, leads to the following
Smatch warning:
"drivers/input/touchscreen/cyttsp4_spi.c:66 cyttsp_spi_xfer()
warn: impossible condition '(reg > 255) => (0-255 > 255)'"
drivers/input/touchscreen/cyttsp4_spi.c
66 if (reg > 255)
^^^^^^^^^
"reg" is unsigned char so 255 is the max it can be.
67 wr_buf[0] = op + CY_SPI_A8_BIT;
68 else
69 wr_buf[0] = op;
regards,
dan carpenter
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