fpga: Replace char * with const char * for filename

Ensure the string for filename is always constant, otherwise it can be
corrupted by the writing.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c
index 499310d0c0beff69ad024c78d0974dffc9cc3b85..683cf14b47e65ba0201944944691a2a67d00fa72 100644 (file)
--- a/drivers/fpga/zynqpl.c
+++ b/drivers/fpga/zynqpl.c
@@ -421,7 +421,8 @@ static int zynq_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
        loff_t blocksize, actread;
        loff_t pos = 0;
        int fstype;
-       char *interface, *dev_part, *filename;
+       char *interface, *dev_part;
+       const char *filename;
 
        blocksize = fsinfo->blocksize;
        interface = fsinfo->interface;

diff --git a/include/fpga.h b/include/fpga.h
index 195f0bdd57a98b1c3404b7d33b31bc53f986969a..51de5c55f830e86f1fc30d2271b9100de058e600 100644 (file)
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -41,7 +41,7 @@ typedef struct {                /* typedef fpga_desc */
        unsigned int blocksize;
        char *interface;
        char *dev_part;
-       char *filename;
+       const char *filename;
        int fstype;
 } fpga_fs_info;