fgetc(): Is it enough to just check EOF?

In various examples found on the web fgetc() is used like this:

FILE *fp = fopen(PATH, "r");

if (fp == NULL) {
    perror("main");
    exit(EXIT_FAILURE);
}

int ch;

while (ch = fgetc(fp) != EOF) {
    // do something
}

But according to the manpage to fgetc()

If a read error occurs, the error indicator for the stream shall be set, fgetc() shall return EOF, [CX] and shall set errno to indicate the error.

So need I check this too? And how?